Introduction to
Collector System Templates
Jonathan Rose
10/28/2019
Background
• RARF will be replaced by RIOO-RS portal
• Currently no web interface for collector system data
– Collector system data will still be submitted via an Excel
upload
– Good News! Excel Template now has built in data
checking
– Format similar to current RARF
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2
Home Sheet
•
Enter basic info about resource
•
Buttons to check data
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3
Cable and Segments Sheets
• Identical to RARF forms
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4
Validations
• Several Validations are performed:
– Island Checks: Are any segments missing?
– Data consistency:
• Are cable types correctly defined?
• Are turbines/inverters numbered correctly?
– “Loop Backs”: Is the layout radial in nature or are there parallel
paths caused by mistakes in the connectivity?
A
in
g!
F
G
Island 2
C
D
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iss
Island 1
M
E
B
Island Check:
Segment E‐F is
missing,
incorrectly
causing a
second island.
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Island Checking
•
POI
SUB1
SUB2
F
3
C
B
3
G
2
2
H
D
1
1
E
Resource1
I
Resource2
Island 2
Island 1
A
1
– Because transformers are not entered
into the Segments sheet, there will be two
groups of collector segments that are not
connected to each other. “Island 1” and
“Island 2”.
3
4
This site with two independent 34.5 kV
SUB buses will appear to have two
islands.
•
However, if the validation step reports
three islands, then you know a mistake
was made
– A segment is probably missing
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6
Turbine Segment Numbering
•
Segments are numbered to indicate the number of turbines/inverters
they support.
POI
Origin Bus
SUB
4
A
1
3
Cable
FROM
TO
CKT
# Turb
XLR
SUB
A
101
4
XLR
A
B
102
1
XLR
A
C
103
3
XLR
C
D
104
2
XLR
D
E
105
1
C
B
2
D
1
•
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E
The segments leaving the SUB node should indicate the total number
of turbines / inverters in the farm. Here, there are 4.
7
Turbine Segment Numbering
•
Most wind farms have only one turbine per node.
– Can’t put two turbines in the same spot!
•
Below, the Validation step has found a node with 7 turbines.
•
This could be caused by a segment that is mis-numbered missing.
– The error is probably near Node F07.
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8
Sites with Mixed Turbines
• New form can accommodate mixed sites.
See Help sheet for details.
POI
SUB1
SUB2
3
4
F
1
3
C
B
3
G
2
2
H
D
1
1
E
Resource1
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I
Resource2
Resource3
Island 2
Island 1
A
Resource
Cable
FROM
TO
CKT
# Turb
Resource1
XLR
SUB1
A
101
4
Resource1
XLR
A
B
102
1
Resource1
XLR
A
C
103
3
Resource1
XLR
C
D
104
2
Resource1
XLR
D
E
105
1
(Mixed)
XLR
SUB2
F
201
3
(Mixed)
XLR
F
G
202
3
(Mixed)
XLR
G
H
203
2
(Mixed)
XLR
H
I
204
1
9
Validation
•
Here’s what you want to see before submitting to ERCOT:
•
Some warning messages may be okay for your particular system
– For example, some solar farms have more than one inverter per Node.
– There may be rare situations were a collector system actually does loopback upon itself and is not a truly radial system.
– Exercise judgment.
•
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Also providing ERCOT a good RAW file that solves out-of-the-box will
help us greatly.
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